The Stone Age was a period of prehistory in which humans used stone tools and weapons. A handaxe is a type of stone tool that was used during the Stone Age. It is a bifacial, teardrop-shaped tool with a sharp edge on one side and a blunt edge on the other. Handaxes were used for a variety of tasks such as cutting, chopping, and scraping. They were also used as weapons for hunting and defense. Handaxes are some of the oldest known artifacts and are an important part of Stone Age archaeology.